Cleaning sponge



FIG. 1 is a top, front, left perspective view of the cleaning spongeshowing out new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a bottom plan view thereof.

CLAIM The ornamental design for a cleaning sponge, as shown.